Word formation
For questions 1-8, read the text below. Use the word given in capitals at the end of some of the lines to form a word that fits in the gap in the same line.
基础词:
Chocolate has been enjoyed for thousands of years, but for most of its history it was drunk rather than eaten. The ancient peoples of Central America made a bitter drink from cacao beans, often flavoured with chilli, and the beans were so 1. that they were sometimes used as money. When the drink reached Europe in the sixteenth century, it was sweetened with sugar and quickly became 2. among the wealthy. The solid chocolate bar is a much more recent 3., dating only from the 1840s, and its 4. grew rapidly once factories could produce it cheaply. Today, however, the chocolate industry faces some serious 5.. Most of the world's cacao is grown by small farmers, many of whom earn 6. little for their work. Changing weather patterns are also causing poor harvests and 7. in some regions, and some experts warn that chocolate could become far more 8. in the years ahead.